PHOTOSHOP: Enhance contrast in mouse cursor

In photoshop CC 2014, the cursor when using certain tools become circular in shape. This cursor changes colour depending on the background colour of the part of the image the mouse is over to make it more visible. Unfortunately with backgrounds of RGB (117,117,117) or close to that it is black with a very thin white border, making it incredibly hard to see. If the cursor was white like with backgrounds of RGB (100,100,100) it would be much more visible.